Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
BUSSMANN DFJ-500 Fast-Acting Bolt-On Fuse, Class J, 500 A, 600 V AC / 450 V DC - Fast-Acting Bolt-On Fuses
BUSSMANNFast-Acting Bolt-On Fuses

BUSSMANN DFJ-500 Fast-Acting Bolt-On Fuse, Class J, 500 A, 600 V AC / 450 V DC

The BUSSMANN DFJ Series is a fast-acting, bolt-on fuse with a Class J body. This model, the DFJ-500, is rated for 500 A at 600 V AC and 450 V DC. It is designed for overcurrent protection in industrial electrical…

SKU 3G-OTH-25867

Also listed as: DFJ500 · DFJ 500

Brand
BUSSMANN
Item
DFJ-500 Fast-Acting Bolt-On Fuse, Class J, 500 A, 600 V AC / 450 V DC
Part Number
DFJ-500
Category
Fast-Acting Bolt-On Fuses
Available to Order
Also known as:DFJ-500BUSSMANN
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BUSSMANN
Manufacturer Part Number
DFJ-500
Series
DFJ
Type
Class J, Bolt-On Body, Fast-Acting, 500 A
AC
600 V
DC
450 V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BUSSMANN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BUSSMANN DFJ Series is a fast-acting, bolt-on fuse with a Class J body. This model, the DFJ-500, is rated for 500 A at 600 V AC and 450 V DC. It is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the BUSSMANN DFJ-500 fuse used for?

The BUSSMANN DFJ-500 is a fast-acting, bolt-on Class J fuse used for overcurrent protection in industrial electrical systems. It safeguards equipment like motor controllers, transformers, and panelboards from short circuits and overloads, ensuring reliable operation in manufacturing plants and commercial facilities.

What are the specifications of the BUSSMANN DFJ-500 fuse?

The BUSSMANN DFJ-500 is a fast-acting, bolt-on fuse from the DFJ Series. It has a Class J body, rated 500 A at 600 V AC and 450 V DC. The manufacturer part number is DFJ-500. It provides overcurrent protection in industrial electrical systems.

Where to buy the BUSSMANN DFJ-500 fuse worldwide?

You can source the BUSSMANN DFJ-500 fuse worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine BUSSMANN components for industrial applications.

How to select the correct BUSSMANN DFJ Series fuse for an application?

To select the correct BUSSMANN DFJ Series fuse, match the voltage rating (600 V AC or 450 V DC) and current rating (e.g., 500 A for the DFJ-500) to your circuit requirements. Ensure the Class J body fits your fuse holder. Consult a qualified engineer for overcurrent protection coordination.

Used in

Common applications for BUSSMANN
Industrial drives — BUSSMANN FWC series fast-acting cylindrical fuses protect power semiconductors in AC/DC drive circuits.
Control transformers — BUSSMANN FNQ-R series time-delay fuses handle inrush currents in control power circuits.
Semiconductor protection — BUSSMANN KAC series bolt-on fuses safeguard diodes, thyristors, and IGBTs in AC-only applications.
Electrical panels — BUSSMANN FP-2, FP-3, FP-4, and FP-6 fuse pullers enable safe fuse replacement in distribution panels.
Automotive electrical systems — BUSSMANN FP-A3 fuse puller removes and installs 1/4 in and 1/2 in automotive fuses.
Power supplies — BUSSMANN FWC series fuses provide overcurrent protection in AC/DC power supply circuits.
Not sure this is the right part? Photo-identify it

BUSSMANN Products

3G Electric supplies BUSSMANN fast-acting bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BUSSMANN

View all BUSSMANN parts
Fast-acting bolt-on fuse rated 70 A at 600 V AC, designed for AC-only circuits. Provides overcurrent protection for semiconductor devices such as diodes, thyristors, and IGBTs. Suitable for use in industrial power supplies, motor drives, and UPS systems where rapid fault current interruption is required
BUSSMANN
Fast-acting bolt-on fuse rated 70 A at 600 V AC, designed for AC-only circuits. Provides overcurrent protection for semiconductor devices such as diodes, thyristors, and IGBTs. Suitable for use in industrial power supplies, motor drives, and UPS systems where rapid fault current interruption is required
Fast-acting, non-indicating bolt-on fuse rated 70 A at 250 V AC/DC. Designed for overcurrent protection of power semiconductors in industrial drives, power supplies, and UPS systems
BUSSMANN
Fast-acting, non-indicating bolt-on fuse rated 70 A at 250 V AC/DC. Designed for overcurrent protection of power semiconductors in industrial drives, power supplies, and UPS systems
Class L, KTU Series fast-acting bolt-on fuse rated 1.6 kA, 600 V AC, 340 V DC. Provides overcurrent protection in industrial switchboards, panelboards, and motor control centers requiring high interrupting capacity and fast response
BUSSMANN
Class L, KTU Series fast-acting bolt-on fuse rated 1.6 kA, 600 V AC, 340 V DC. Provides overcurrent protection in industrial switchboards, panelboards, and motor control centers requiring high interrupting capacity and fast response
Fast-acting bolt-on fuse rated 400 A, 700 V AC and 700 V DC. Designed for overcurrent protection of power semiconductors in AC/DC circuits. Typical applications include variable frequency drives, UPS systems, and industrial power supplies
BUSSMANN
Fast-acting bolt-on fuse rated 400 A, 700 V AC and 700 V DC. Designed for overcurrent protection of power semiconductors in AC/DC circuits. Typical applications include variable frequency drives, UPS systems, and industrial power supplies
Fast-acting bolt-on fuse rated 400 A at 500 V AC and 500 V DC. Designed for overcurrent protection in power electronic applications such as variable frequency drives, rectifiers, and UPS systems. Clears faults rapidly to safeguard sensitive semiconductor devices
BUSSMANN
Fast-acting bolt-on fuse rated 400 A at 500 V AC and 500 V DC. Designed for overcurrent protection in power electronic applications such as variable frequency drives, rectifiers, and UPS systems. Clears faults rapidly to safeguard sensitive semiconductor devices

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first